Home / 384,336,316.40-530,422,050.12-219,348,569.84

Finding the Fourth Proportional to 384,336,316.40, 530,422,050.12 and 219,348,569.84

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Solution

The fourth proportional to 384,336,316.40, 530,422,050.12 and 219,348,569.84 is: 302,722,675.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,336,316.40 : 530,422,050.12 = 219,348,569.84 : x
  2. Step 2: Convert to fraction form
    384,336,316.40/530,422,050.12 = 219,348,569.84/x
  3. Step 3: Cross multiply
    384,336,316.40x = 530,422,050.12 × 219,348,569.84
  4. Step 4: Simplify right side
    384,336,316.40x = 116,347,318,105,422,800
  5. Step 5: Solve for x
    x = 116,347,318,105,422,800/384,336,316.40
  6. Step 6: Final answer
    x = 302,722,675.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.